Load analysis and deformation research of the flexible bearing based on a three-force ring superposition method

IF 1.2 4区工程技术 Q3 ENGINEERING, MECHANICAL Mechanics & Industry Pub Date : 2021-01-01 DOI:10.1051/MECA/2021030

Yang Yu, E. Zhu, Xiaoyang Chen, Yang Wang

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引用次数: 4

Abstract

The flexible bearing is a key component of harmonic reducer enabling the flexspline to generate a controllable elastic deformation. Its performance and life will significantly affect the normal operation of harmonic reducer. In order to improve the life and the working performance of the flexible bearing, the calculation of its load distribution is necessary. Based on the theory of thin-walled ring, the relationship between radial deformation and load of three-force ring was derived. Then a superposition model of three-force ring was developed to calculate rapidly the load distribution of flexible bearings with elliptical cams in harmonic reducers. The validity of the proposed model was proved by comparing with a static analysis model. In this paper, the influences of ball number and external load on the load distribution, radial deformation and bending normal stress of outer ring were investigated by three-force ring superposition method. Based on the deformation of three-force ring, the deformation characteristics and bending normal stress distribution of outer ring of the flexible bearing were analyzed, and several regular results were found.

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基于三力环叠加法的柔性轴承载荷分析与变形研究

柔性轴承是谐波减速器的关键部件，能使柔轮产生可控的弹性变形。其性能和寿命将显著影响谐波减速器的正常运行。为了提高柔性轴承的寿命和工作性能，有必要对其载荷分布进行计算。基于薄壁环理论，推导了三力环径向变形与载荷的关系。为了快速计算谐波减速器中椭圆凸轮柔性轴承的载荷分布，建立了三力环叠加模型。通过与静态分析模型的比较，证明了该模型的有效性。采用三力环叠加法，研究了球数和外载荷对外圈载荷分布、径向变形和弯曲法向应力的影响。基于三力环的变形，分析了柔性轴承外圈的变形特征和弯曲法向应力分布，得到了几个规律的结果。

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来源期刊

Mechanics & Industry ENGINEERING, MECHANICAL-MECHANICS

CiteScore

2.80

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： An International Journal on Mechanical Sciences and Engineering Applications With papers from industry, Research and Development departments and academic institutions, this journal acts as an interface between research and industry, coordinating and disseminating scientific and technical mechanical research in relation to industrial activities. Targeted readers are technicians, engineers, executives, researchers, and teachers who are working in industrial companies as managers or in Research and Development departments, technical centres, laboratories, universities, technical and engineering schools. The journal is an AFM (Association Française de Mécanique) publication.